Anyone know of anyplace in midwest (Ohio, Indiana,Illinois) that can service Yanmar rv genset. I have tried calling Yanmar all they send me to is tractor places that dont want to have anything to do with it. Problem I am having is I was able to start it and it would run 6-8 hours no problem then die( Run Out of fuel). Try to restart, it would crank but not start, hold the prime switch and it will start. Now it will not start at all unless you hold prime switch. screw on fuel filter is new. Is there maybe a a 2 nd fuel filter at the injection pump? If anyone has any info on Yanmar please help!!

Sad, Also sounds like Honda, they are quick to sell a generator, but not a clue for repairing it, we get many calls for repair for them, ya just gotta laugh as Honda seems only to sell you a new unit.Dave M

Ok it is not a fuel problem it is a throttle control problem. when I push the start button the solinoid pulls the throttle back to start but upon releasing the start button the solinoid releases the throttle. If i hold the throttle by hand it runs perfect and smooth. Need to figure out what controls the solinoid after the start button is released.

FWIW I got fed up with the control circuitry on my Jurassic model Onan and rejigged it entirely. If it turns into an ordeal figuring out why your Yanmar run solenoid isn't staying in you may want to consider the same. I figure that a diesel engine is about the simplest piece of machinery known and it shouldn't take complex electronics to keep a 30 year old mechanical diesel running safely. So I did the following:

First I ripped out all the Onan $#!%. Then I installed one "ford" cube relay to hold the run solenoid in. That relay is NO. The coil takes its ground through a 10 cent temperature switch that is NC and opens around 250 degrees. I mounted that on top of the head so if the engine gets hot the run solenoid drops out. Note that my engine is air cooled. For a water jacket you would want a lower setpoint on this switch. The hot side of the coil comes through a NO oil pressure switch that closes on relatively low pressure (can't remember if its 8 or 12 psi but it doesn't much matter).

Now when I engage the starter the engine turns over until oil pressure comes up to whatever that oil pressure switch setpoint is. At that point the circuit closes to send power to the relay. As long as the engine isn't overhot the relay coil sees ground through the temp switch and it pulls the run solenoid in. The engine starts. When you drop the run power to the NO oil pressure switch it all reverses and the engine stops. Dead simple. Fool proof. Hell its even idiot proof. Note that if the engine ever loses oil pressure for any reason it will also stop because the NO oil pressure switch will break the circuit to the run relay.

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R.J.(Bob) EvansUsed to be 1981 Prevost 8-92, 10 spdCurrently busless (and not looking)My websiteOur weblogSimply growing older is not the same as living.

Dont , but sounds like a fuel issue, have seen dumb things like a gas cap that Did not breathe, as tank went down, a vacuum built up and the gas stopped flowing.Yes I know it is too stupid, but give it a try, then laugh.DaveM